Furnace wall



Jan. 27, 1925.

, M. LIFTAK FURNACE WALL 2 Sheets-Sheet 1 1 a a a war a 2. w 4 o .4 m 6. k a 7. a C. 8

M. LIPTAK FURNACE WALL Filed April '7, 1924 V 2Sheets-Sheet 2 Patented Jan. 27, 1925.

UNITED STATES MICHAEL LIPTAK, 0F MINNEAPOLIS, MINNESOTA.

FURNACE WALL.

Application filed April 7, 1924.

To all whom it may concern.-

Be it known that I, MICHAEL LIr'rAn, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Furnace \Valls; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention relates to furnace walls and is in the nature of a modification of the furnace wall disclosed and claimed in my companion application entitled Furnace wall filed of even date herewith, under Serial No. 704,620.

The wall of the present application, as well as that of said companion application, is of such design that it may be built up entirely of simple rectangular commercial blocks, the term blocks being used in a sense to include bricks or tiles. The advantage of such construction is obvious, for it 1 follows that the supplies for building these walls may be obtained readily from any manufacturer or place where refractory bricks and tiles are carried in stock.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a fragmentary perspective showing a furnace wall designed in accordance with my invention, certain of the blocks thereof being removed;

Figs. 2 and 3 are details in perspective showing certain of the wall-forming blocks;

Fig. 4 is a fragmentary transverse vertical section taken approximately on the line l-4- of Fig. 1; and

F lg. 5 is a fragmentary perspective showing' the construction illustrated in 2 modified and embodied in a partition wall.

Referring first to the construction illustrated in Figs. 1, 2 and 8, it will be noted that the composite wall there illustrated is made up of a permanent outer wall and a replaceable inner Wall. The permanent wall, as preferably designed, is built up of bricks 6, 6 and 7 and ledge blocks 8. The bricks 6 and 7 may be common bricks, but the bricks 6' are preferably fire bricks, and the ledge blocks 8 are high refractory tile. The bricks 6 and 6 are laid in the usual way to form complete wall belts upon which the Serial No. 704,619.

tween the upper and lower ledge blocks 8, i

that extends about two-thirds the way through the wall from the inner face thereof. Obviously, a wall constructed just as indicated would not be well supported without the insertion of certain elements into the channels between the upper and lower ledge plates, but as will be presently noted, such provision is made in the construction of the replaceable wall.

The replaceable. wall is built up of fire bricks 9 and 10, the former of which are of standard length and other dimensions, and the latter of which have the cross section of standard fire brick but art double length. In the replaceable wall illustrated, all of the fire bricks 9 are laid as headers, thereby giving the replaceable wall a thickness of approximately nine inches, and in this arrangement, the double length bricks 10 are approximately eighteen inches in length. The said long bricks 10 are set edgewise in vertical planes and are extended into the channels between the ledge plates 8, so that they form continuous horizontal rows. Highly refractory cement 11 may be placed between the tops of the bricks 10 and the under surface of the upper ledge blocks 8. The long bricks 10 serve as bonds between the permanent and replaceable wall and they will serve to support the inner portions of the upper ledge blocks 8 even when a large num ber of the said bricks 10, at various different places, are removed. These long bonding bricks 10 may be easily loosened up and removed from bet-ween the ledge blocks of the permanent wall, but to facilitate this removal, certain of the bricks 10 are shown as provided ll'll their upper edges with small grooves 10" with which a crowbar 12 or the like may be applied, as shown in Fig. 4, by reference to which it will be noted that the crowbar, as there applied, is fulcrumed against a loose brick or block 13 to get the leverage for prying the brick endwise out of its seat within the permanent wall.

In building up the composite wall of the character just described, it is evident that the two walls should be progressively built up together, so that the bricks 10 will be properly seated between the upper and lower ledge blocks 8. However, it will be possible to completely build up the outer wall, by using temporary supports between the ledge blocks or by using a limited number of the bricks 1O properly positioned.

A wall of the above character may be rapidly laid up and, moreover, may be quickly and easily repaired, for it is possible to remove very considerable groups or numbersof the bricks of the replaceable wall and to replace the same with new bricks without damaging or taking down the permanent wall.

In the partition wall illustrated in Fig. .5, the construction is very similar to that illustrated in Fig. 1, but in this design, the brick belts 6 6 are omitted and the permanent wall is built up entirely of the upper and lower ledge blocks 8 and the narrow interposed courses of brick 7. Also, it is important ,to note that in this arrangement, the spacing courses of bricks 7,, in a vertical direction, are alternated, so that vertically adjacent channels formed between the ledge blocks 8 open at opposite sides of the permanent wall. The replac able walls are of .the structure illustrated in Fig. 1, but, of

course, in this arrangement, the long bonding bricks 10 that are Seated in the alternately arranged channels between ledge blocks project from the permanent wall alternately at opposite sides thereof. By ref erence to Fig. 5, it will be noted that the permanent wall, with the bonding bricks removed, has a zigzag rectangular vertical cross section and would be self-sustaining only when more or less of the bonding bricks 10 are in position. Of course, in making repairs, it will be an easy matter always to leave the proper number of long bricks 10 in position so as to support the permanent wall while substitution of new for burned out bricks is being made.

lVhat I claim is:

1. A composite Wall comprising a permanent wall and a replaceable wall, said per manen't wall having upper and lower ledge blocks laid-in horizontal courses and relatively narrow courses of bricks spacing apart the cooperating upper and lower ledge blocks but leaving deep channels between the latter, and said replaceable wall comprising relatively long and short bricks, the zfori-ner extending from the replaceable wall into the channels formed in the permanent wall between the upper and lower ledge blocks thereof.

2. A composite wall comprising a perinanen-t wall and a replaceable wall, said permanent wall. having upper and lower ledge blocks laid in horizontal courses and relatively narrow courses of bricks spacing apart the cooperating upper and lower ledge blocks but leaving deep channels between the latter, and said replaceable wall com prising relatively long and short bricks, the former extending from the re )laceable wall into the channels formed in he pern'ianent wall between the upper and lower ledge blocks thereof, the said wall-for1ning elements being rectangular commercial structures.

3. A composite wall comprising a permanent wall and a replaceable wall, said permanent wall having upper and lower ledge blocks laid in horizontal courses and relatively narrow courses of bricks spacing apart the cooperating upper and lower ledge blocks but leaving deep channels between the latter, and said replaceable wall comprising relatively long and short bricks, the former extending from the replaceable wall into the channels formed in the permanent wall between the upper and lower ledge blocks thereof, the said wall-forming elements being rectangular comn'u-ircial structures, and all of the bricks of said replaceable wall being laid as headers.

4. A composite wall comprising a permanent wall and a replaceable wall, said permanent wall having upper and lower ledge blocks laid in horizontal courses and relatively narrow courses of bricks spacing apart the cooperating upper and lower ledge blocks but leaving deep channels between the latter, and said replaceable wall comprising relatively long and short bricks, the former extending from the replaceable wall into the channels formed in the pernulnent wall between the upper and lower ledge blocks thereof, certain of said long bricks having notches approximately at their ccntral portions to facilitate removal thereof from the channels of the permanent wall.

5. The structure defined in claim 1 in which said ledge-forming blocks transversely of the wall have a width approxi mately three times the width of the bricks that space apart said upper and lower ledge blocks, said spacing bricks being laid flush with a face surface of said permanent wall.

6. The structure defined in claim 1 in which said permanent wall also includes horizontal belts of connnercial bricks laid between the cooperating channel-forming ledge blocks.

7. The structure defined in claim 1. in which the channels formed in the permanent wall by the said ledge blocks open alternately at opposite faces thereof. and in which there is a replaceable wall on each side of said permanent wall. the long bricks of said replaceable walls being extended into the said alternately opening channels.

In testimony whereof I alfix my signature.

MICHAEL LIPTAK. 

